UNITED MICROELECTRONICS CORP

Ticker: UMC CUSIP: 910873405 Class: ADR

Parallax Volatility Advisers, L.P.'s Holding History (CIK: 0001521001)

Note: Option positions (PUT/CALL) are excluded.

Q4 2025
Shares 2,550 Value ($000) $20 Avg Close — Range —
Q3 2025
Shares 6,528 Value ($000) $49 Avg Close — Range —
Q2 2025
Shares 6,198 Value ($000) $47 Avg Close — Range —
Q1 2025
Shares 10,599 Value ($000) $76 Avg Close — Range —
Q4 2024
Shares 128,456 Value ($000) $834 Avg Close — Range —
Q3 2024
Shares 28,167 Value ($000) $237 Avg Close — Range —
Q2 2024
Shares 7,618 Value ($000) $67 Avg Close — Range —
Q1 2023
Shares 12,855 Value ($000) $113 Avg Close — Range —
Q4 2022
Shares 146,757 Value ($000) $958 Avg Close — Range —
Q3 2022
Shares 188,247 Value ($000) $1,049 Avg Close — Range —
Q2 2022
Shares 74,246 Value ($000) $503 Avg Close — Range —
Q1 2022
Shares 4,345 Value ($000) $40 Avg Close — Range —
Q1 2021
Shares 223,896 Value ($000) $2,040 Avg Close — Range —